Magnets are used to remove tramp metal or nuisance metal from bulk materials.  There are two primary purposes for this: to maintain product purity and to protect downstream equipment from damage.

Magnets are available in a variety of configurations, strengths and finishes to suit the application.  Two magnets can appear to be identical but have very different properties.

Grate magnet available with round or square bars
Grate magnet with baffles
Wedge magnet
Cross belt magnetic separators